UPDATE: Matt Ebden and Marinko Matosevic have both been ousted in the first round of the ATP 250 event in Delray Beach in Florida on Tuesday.

Marinko Matosevic has cracked the top 40 in this week's ATP rankings, at the same time reclaiming the mantle as Australia's top-ranked male player.

A devastated Marinko Matosevic on Saturday was forced to retire injured in his semifinal against Japan's Kei Nishikori at the ATP event in Memphis.

Marinko Matosevic is through to the semifinals of ATP 500 event in Memphis courtesy of a straight-sets win over seventh seed Alexandr Dolgopolov.

Marinko Matosevic has scored an upset victory over Sam Querrey on Thursday in Memphis to reach the quarters, yet compatriot.Lleyton Hewitt was not so lucky.

UPDATE: Lleyton Hewitt and Marinko Matosevic have moved into the second round at Memphis on Wednesday after contrasting victories at the ATP 500 event.

Australian No.2 Marinko Matosevic has been nominated at the 2012 Victorian Sport Awards, to be held at Victoria’s home of sport, the Melbourne Cricket Ground.

UPDATE: Australians Marinko Matosevic, Matt Ebden and Lleyton Hewitt have gone down at the SAP Open in San Jose, California on Thursday.

UPDATE: Lleyton Hewitt recovered to defeat Blaz Kavcic in the opening round of the SAP Open in San Jose, while Marinko Matosevic was also a first round winner.

Marinko Matosevic has continued Australia's dominance in its first-round Davis Cup tie versus Chinese Taipei in Kaohsiung.